[3학년][1학기][디지털제조입문][2w]

2024.03.05

 

Manufacturing

Manufacturing is Important Technologically, Economically, Historically

Manufacture 어원: manus(hand) + factus(make)

Most modern manufacturing is accomplished by automated and computer‑controlled machinery that is manually supervised

Manufacturing is the application of physical and chemical processes to alter the geometry, properties, and/or appearance

출처: 강의노트

Manufacturing is the transformation of materials into items of greate value by means of one or more processing and/or assembly

• Manufacturing adds value to the material by changing its shape or properties, or by combining it with other materials that have been similarly altered

출처: 강의노트

 

브랜드 이미지 분리: 현대의 제네시스

Manufacturing Industries는 Primary, Secondary, Tertiary industries로 나뉨

• Consumer Goods: 소비재
• Capital Goods: 자본재

Offshoring과 Reshoring

Production Quantity

• 1년에 소나타 1대 만들기와 50만대 만들기의 제조는 전혀 다른 것
• Production range: Low - Medium - High

Product Variety

• 제품 종류(얼마나 다양한 제품을 만드는가)
• Production Quantity(Volumn)&Product Variety(Mix)is inverse correlation
• : 다품종 소량 생산 vs 소품종 대량 생산
• 다품종 대량 생산으로 가야함(어려움)

Manufacturing Capability

• Technological processing capability
• includes not only physical processes but also expertise of plant personnel
• Physical product limitations
• Production capacity
• (위 3개 시험 나옴)

Materials in Manufacturing

Metals

• Two basic Groups

1. Ferrous metals
2. Nonferrous metals

Ceramics

1. Crystalline ceramics
2. Glasses

Polymers

1. Thermoplastic polymers
2. Thermosetting polymers

Composites

• 복합 재료

(Two basic Groups 시험내기 좋음)

Manufacturing Processes

(Two basic Groups 시험내기 좋음)

1. Processing operations

: transform

• Shaping operations
  1. Solidification: 주물
  2. Particulate: 분말 소결
  3. Deformation: 연성이 있는 금속을 두들기거나 짜냄
  4. Material removal: 기계 가공
  • Waste in Shaping Processes: minimize waste and scrap
  • Terminology
    • Net shape processes
    • Near net shape processes
• Property-enhancing operations
• Performed to improve mechanical or physical properties
• Surface processing operations
  1. Cleaning
  2. Surface treatments
  3. Coating and thin film deposition

2. Assembly operations

: join two or more componets~

• Joining process
• 분해 안 됨
• Mechanical assembly
• 분해 가능

Production Systems

Production facilities

• touch the product
• plant layout
• logical groupings

Production Facilities and Product Quantities

• Low Quantity
  • Job shop, general purpose, highly skilled, maximum flexibility
• Medium Quantity
  • batch production, cellular manufacturing(cell 생산방식)
  • 생산에 필요한 치구의 가격
• High Quantity
  • mass production, dedicated, Flow shop

Manufacturing support systems

• 생산량은 평준화 될 때가 가장 좋음(편차가 있으면 안 좋음)
• Manufacturing engineering
• Production planning and control
• Quality control